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	hartrees
Energy at 0K	-10315.874315
Energy at 298.15K
HF Energy	-10315.473425
Nuclear repulsion energy	1441.173158

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	1620	1586
2	A_g	248	243
3	A_g	147	143
4	A_u	59	57
5	B_1u	608	595
6	B_1u	186	183
7	B_2g	584	572
8	B_2u	752	736
9	B_2u	123	120
10	B_3g	898	879
11	B_3g	218	213
12	B_3u	267	261

Atom	y (Å)	z (Å)
C1	0.000	0.668
C2	0.000	-0.668
Br3	1.630	1.730
Br4	-1.630	1.730
Br5	-1.630	-1.730
Br6	1.630	-1.730

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3362	1.9454	1.9454	2.8996	2.8996
C2	1.3362		2.8996	2.8996	1.9454	1.9454
Br3	1.9454	2.8996		3.2603	4.7538	3.4597
Br4	1.9454	2.8996	3.2603		3.4597	4.7538
Br5	2.8996	1.9454	4.7538	3.4597		3.2603
Br6	2.8996	1.9454	3.4597	4.7538	3.2603

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	123.076	C1	C2	Br6	123.076
C2	C1	Br3	123.076	C2	C1	Br4	123.076
Br3	C1	Br4	113.847	Br5	C2	Br6	113.847

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: MP4=FULL/3-21G

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: MP4=FULL/3-21G

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)